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Expired Canadian patentCanada

Process for producing ubiquinone-10

CA 2718652 C · Owner: Kyowa Hakko Bio Co. Ltd. · Inventors: Hashimoto, Shin-Ichi; Miyake, Koichiro; Ozaki, Akio

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides a process for producing ubiquinone-10 using a microorganism having the ability to form ubiquinone-10 and having one or more properties selected from the group consisting of the property wherein geranylgeranyltransferase activity is reduced or defective the property wherein decaprenyldiphosphate synthetase activity is strengthened and the property wherein p-hydroxybenzoic acid-decaprenyltransferase activity is strengthened DNA and a polypeptide useful for the production process microorganisms useful for the production a method for expressing a gene in the microorganisms and a method for breeding the microorganisms.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed October 13, 2000 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 13, 2000
GrantedJuly 29, 2014
Term endedOctober 13, 2020
Patent numberCA 2718652 C
Classification (IPC)C12N9/10 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedOct 13, 2000Patent grantedJuly 29, 2014Term endedOct 13, 2020

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.